Why is the file I'm trying to write "nonexistent"?

Question

I have my own configuration file in my CI application. In my web application admin panel, I want to have a form that I can use to change the values ​​of the config array of a user file. My problem right now is that the write_file function always returns false, and I don't know why. I am sure that I write the path in the function correctly, and the config directory is not read-only (this is wamp, therefore Windows). The file definitely exists. What am I doing wrong?

This app / controllers / config / assets.php

$file = FCPATH . 'application\config\assets_fe.php'; if(is_writable($file)) { $open = fopen($file, 'W'); if(!fwrite($open, $frontend)){ echo "Could not write file!"; } else { echo "File written!"; } } else { echo "File not writable!"; } 

This is a screenshot of the file at its location in Windows Explorer.

I tried the following file paths in the write_file function:

 write_file(FCPATH.'application/config/assets_fe.php', $frontend, 'W'); write_file('application/config/assets_fe.php', $frontend, 'W'); write_file('./application/config/assets_fe.php', $frontend, 'W'); 

None of the above file paths worked ... maybe this is something else?

FYI: FCPATH = 'W: \ wamp \ www \ zeus \' and it is determined by the CI controller before returning the path to this file.

Update: I tried to use only my own version of PHP, and he said that the file or directory does not exist. Maybe I'm using the wrong way. What should it be?

Answer 1

The answer is simple, you are passing an invalid mode, captical W , fopen . It must be lowercase w . So, what happens fopen returns false , then you pass this instead of fwrite instead of the resource, forcing it to return false .

Just change

 $open = fopen($file, 'W'); 

to

 $open = fopen($file, 'W'); 

You can also check fopen result

 if(!$open) echo 'Could not open file'; 

You can also try file_put_contents , since you are not doing anything with the file descriptor.

 $file = FCPATH.'application\config\assets_fe.php'; if(is_writable($file)){ if(!file_put_contents($file, $frontend)) { echo "Could not write file!"; } else { echo "File written!"; } } else { echo "File not writable!"; } 

Answer 2

You must use set_item to write to the configuration file.

 $this->config->set_item('item_name', 'item_value'); 

for arrays:

 $this->config->set_item('ftp_frontend', array(...)); 

Here it is in config .

Answer 3

I do not think you need to write in the config.php file. Instead of writing in the config.php , the custom CI configuration class can override the value of the configuration file, as shown below

For one item

 $this->config->set_item('item_name', 'item_value'); 

For an array element

 $this->config->set_item('item_array', array(...));